28425502 has 8 divisors (see below), whose sum is σ = 48729456. Its totient is φ = 12182352.

The previous prime is 28425491. The next prime is 28425503. The reversal of 28425502 is 20552482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015183 + ... + 1015210.

It is an arithmetic number, because the mean of its divisors is an integer number (6091182).

Almost surely, 2^28425502 is an apocalyptic number.

28425502 is a deficient number, since it is larger than the sum of its proper divisors (20303954).

28425502 is a wasteful number, since it uses less digits than its factorization.

28425502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030402.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 28425502 is about 5331.5571834127. The cubic root of 28425502 is about 305.1893547816.

Adding to 28425502 its reverse (20552482), we get a palindrome (48977984).

The spelling of 28425502 in words is "twenty-eight million, four hundred twenty-five thousand, five hundred two".